House extensions in Antrim and Newtownabbey

Antrim and Newtownabbey received 212 householder applications in the last 12 months - about 4 a week. Garage works and rear extensions are the most common. Of the 121 decided so far, 115 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 59 applications
21 Oct 2026 Valid LA03/2026/0756/F

61 Arthur Avenue, Newtownabbey, BT36 7EJ

Single storey extension to the rear and side of an existing dwelling

Full Antrim And Newtownabbey
21 Oct 2026 Valid LA03/2026/0764/F

64 Old Ballyrobin Road, Muckamore, Antrim, BT41 4TJ

Domestic garage/store

Full Antrim And Newtownabbey
20 Oct 2026 Valid LA03/2026/0753/F

20 Dillons Avenue, Newtownabbey, BT37 0SX

Propoed single storey extension to rear of dwelling

Full Antrim And Newtownabbey
18 Oct 2026 Valid LA03/2026/0740/F

5 Broadacres, Ballyclare, BT39 0AY

Addition of single-storey rear extension and replacement of rear single storey sunroom with internal alterations

Full Antrim And Newtownabbey
15 Oct 2026 Valid LA03/2026/0748/F

Glen Oak House, 1 Nutts Corner Road, Crumlin, BT29 4BW

Removal of damaged garden fence on slope and replace with retaining structure and new fence height to be lower than original

Full Antrim And Newtownabbey
14 Oct 2026 Valid LA03/2026/0744/F

66 Ashgrove, Newpark, Antrim, BT41 2BL

Alterations and extensions to dwelling

Full Antrim And Newtownabbey
13 Oct 2026 Consultation Open LA03/2026/0482/F

178 Jordanstown Road, Newtownabbey, BT37 0LY

Erection of boundary fence

Full Antrim And Newtownabbey
12 Oct 2026 Consultation Open LA03/2026/0743/F

92 Rickamore Road Upper, Templepatrick, Ballyclare, BT39 0JF

Alterations and extension to dwelling

Full Antrim And Newtownabbey
9 Oct 2026 Consultation Open LA03/2026/0739/F

12a Irish Hill Road, Ballyclare, BT39 9NQ

Proposed New Access to Existing Dwelling

Full Antrim And Newtownabbey
7 Oct 2026 Consultation Open LA03/2026/0728/F

43 Knockmoyle Drive, Antrim, BT41 1HE

Proposed single storey extension & installation of solar panels to existing dwelling.

Full Antrim And Newtownabbey
7 Oct 2026 Consultation Open LA03/2026/0730/F

51 Oaktree Drive, Antrim, BT41 1DA

Conversion with alterations to existing domestic garage for ancillary accommodation

Full Antrim And Newtownabbey
7 Oct 2026 Consultation Open LA03/2026/0731/F

123 The Burn Road, Doagh, Ballyclare, BT39 0RE

Proposed removal of existing boundary fence(s) and replacement with new close boarded timber privacy fence

Full Antrim And Newtownabbey
6 Oct 2026 Consultation Open LA03/2026/0726/F

64 Fairview Road, Newtownabbey, BT36 6QP

Level access ramp at front of property

Full Antrim And Newtownabbey
5 Oct 2026 Consultation Open LA03/2026/0711/F

70m South of No. 24 Belfast Road, Ballynure, Ballyclare, BT39 9TZ

Dwelling and Garage (Change of house type from previously approved application LA03/2024/0488/RM)

Full Antrim And Newtownabbey
1 Oct 2026 Consultation Open LA03/2026/0710/F

19 Ravelston Crescent, Newtownabbey, BT36 6PJ

Platform steps at the front & side of dwelling

Full Antrim And Newtownabbey
1 Oct 2026 Consultation Open LA03/2026/0632/F

50 Hartley Hall, Greenisland, Carrickfergus, BT38 8ZR

Conversion and extension of existing garage to form granny annex

Full Antrim And Newtownabbey
1 Oct 2026 Consultation Open LA03/2026/0708/F

8 Craighill Manor, Ballyclare, BT39 9QA

Alterations and extension to dwelling

Full Antrim And Newtownabbey
30 Sept 2026 Valid LA03/2026/0707/F

34 Crosshill Road, Crumlin, BT29 4BQ

Proposed single-storey extension to dwelling and retention of ancillary garden room building and decking

Full Antrim And Newtownabbey
30 Sept 2026 Consultation Open LA03/2026/0706/F

47 Main Street, Ballyclare, BT39 9AA

Retention of remodelling of rear return to include extension and alteration of roof line including external alterations

Full Antrim And Newtownabbey
29 Sept 2026 Consultation Open LA03/2026/0701/F

12 Oriel Court, Antrim, BT41 4JT

Single storey rear extension

Full Antrim And Newtownabbey
27 Sept 2026 Consultation Open LA03/2026/0696/F

48 Ballycraigy Road, Newtownabbey, BT36 4SX

Alterations and extension to dwelling

Full Antrim And Newtownabbey
25 Sept 2026 Consultation Open LA03/2026/0684/F

25m NE of 183 Ballymena Road, Doagh, Ballyclare, BT39 0TW

Retention of dwelling and garden room

Full Antrim And Newtownabbey
24 Sept 2026 Consultation Open LA03/2026/0694/F

12 Whappstown Road, Moorfields, Ballymena, BT42 3NX

Rear single storey extension to dwelling to incorporate addition area within Music Room

Full Antrim And Newtownabbey
22 Sept 2026 Consultation Open LA03/2026/0644/F

13 Grove View, Aldergrove, Crumlin, BT29 4EJ

Addition of a ground floor single-storey rear extension, and a first floor rear extension

Full Antrim And Newtownabbey
22 Sept 2026 Consultation Open LA03/2026/0682/F

1 Sandyknowes Avenue, Newtownabbey, BT36 5DQ

Extension and alterations to dwelling

Full Antrim And Newtownabbey
17 Sept 2026 Consultation Open LA03/2026/0661/F

536 Shore Road, Newtownabbey, BT37 0SJ

Three storey extension to rear of dwelling and new garage

Full Antrim And Newtownabbey
17 Sept 2026 Consultation Open LA03/2026/0676/F

67 Whitehouse Park, Newtownabbey, BT37 9SH

Proposed outbuilding for garden equipment and vehicles ancillary to adjacent dwelling house with associated enhanced landscaping.

Full Antrim And Newtownabbey
16 Sept 2026 Site Inspection Complete LA03/2026/0675/F

20 John Street, Randalstown, BT41 3AD

Extension to existing storage unit at ground floor & extension and change of use from a first floor apartment to staff facilities and storage

Full Antrim And Newtownabbey
15 Sept 2026 Consultation Open LA03/2026/0672/F

Lands approximately 14m NW of 12a British Road, Aldergrove, Crumlin, BT29 4DH

Retention of static caravan ancillary to main dwelling

Full Antrim And Newtownabbey
14 Sept 2026 Consultation Open LA03/2026/0662/F

18 Whelans Park, Randalstown, Co. Antrim, BT41 2EN

Graduated Steps at front and rear of Property

Full Antrim And Newtownabbey
14 Sept 2026 Consultation Open LA03/2026/0666/RM

40m approx. east of 85 Magheralane Road, Randalstown, BT41 2NT (accessed off Connaught Road)

New dwelling and garage

Reserved Matters Antrim And Newtownabbey
13 Sept 2026 Consultation Open LA03/2026/0657/F

88 Arthur Avenue, Newtownabbey, BT36 7EJ

Roof space conversion with dormer to rear elevation

Full Antrim And Newtownabbey
11 Sept 2026 Consultation Open LA03/2026/0658/F

54 Charles Drive, Ballyclare, BT39 9BX

Alteration and extension to dwelling

Full Antrim And Newtownabbey
8 Sept 2026 Consultation Open LA03/2026/0639/F

1-5 Farmley Road, Newtownabbey, BT36 7TR

Proposed change of use from a bank (use class A2) to retail (use class A1) at ground floor and to 2no. residential apartments at first floor with a ro...

Full Antrim And Newtownabbey
8 Sept 2026 Consultation Open LA03/2026/0584/F

36B Blackrock Road, Randalstown, BT41 3LF

Proposed access laneway

Full Antrim And Newtownabbey
7 Sept 2026 Consultation Open LA03/2026/0619/F

30 Carnbeg Dale, Antrim, BT41 4RE

Extension and alterations to dwelling

Full Antrim And Newtownabbey
3 Sept 2026 Consultation Open LA03/2026/0633/F

Former Monkstown Orange Hall, 70 NE of 29 Knockagh Road, Newtownabbey, BT36 5BW

Conversion of existing building into dwelling, with extension to create additional living accommodation and garage (Superceding approval LA03/2022/060...

Full Antrim And Newtownabbey
1 Sept 2026 Consultation Open LA03/2026/0621/O

Nos. 1-2 and 4-6 Lower Springvale Row, Doagh, BT39 0ST

Proposed two replacement dwellings and garage, access and ancillary site works

Outline Antrim And Newtownabbey
1 Sept 2026 Consultation Open LA03/2026/0627/F

50m North of 151 Lisnevenagh Road, Tavnaghmore, Antrim, BT41 2JU

Replacement dwelling and garage

Full Antrim And Newtownabbey
1 Sept 2026 Valid LA03/2026/0626/F

111 Magheralane Road, Randalstown, BT41 2PD

Replacement Garage

Full Antrim And Newtownabbey
24 Aug 2026 Consultation Open LA03/2026/0610/F

30 Aylesbury Rise, Newtownabbey, BT36 7ZA

Two storey side extension to dwelling

Full Antrim And Newtownabbey
24 Aug 2026 Consultation Open LA03/2026/0605/F

Approx 70m northeast of 21 Glebe Road, Newtownabbey, BT36 6UW

Dwelling (Change of house type to PAC approval 2025/A0036 [LA03/2025/0294/F])

Full Antrim And Newtownabbey
21 Aug 2026 Consultation Open LA03/2026/0550/F

Integrated College Glengormley, 134 Ballyclare Road, Newtownabbey, BT36 5HP

Construction of a new single-storey extension and associated external works to provide permanent purpose-built accommodation comprising two Specialist...

Full Antrim And Newtownabbey
19 Aug 2026 Consultation Open LA03/2026/0596/F

Oakfield House,12 Aghnadarragh Road, Glenavy, Crumlin, BT29 4QG

Extensions to existing dwelling including domestic garages and swimming pool for private domestic use, lobby linking dwelling to home gym (converted f...

Full Antrim And Newtownabbey
18 Aug 2026 Consultation Open LA03/2026/0595/F

9 Ravelston Gardens, Newtownabbey, BT36 6PN

First floor rear extension to dwelling

Full Antrim And Newtownabbey
18 Aug 2026 Approved 30 Sep LA03/2026/0554/F

51b Green Road, Ballyclare, BT39 9PH

Retention of extension to existing indoor padel tennis facility, parking and all associated works

Full Antrim And Newtownabbey
18 Aug 2026 Consultation Open LA03/2026/0589/F

27 Hartley Hall Crescent, Greenisland, Carrickfergus, BT38 8ZZ

Roofspace conversion with rear dormer

Full Antrim And Newtownabbey
18 Aug 2026 Decided 21 Sep LA03/2026/0598/F

77 Ballybentragh Road, Dunadry, Antrim, BT41 2HJ

Alterations and extensions to dwelling

Full Antrim And Newtownabbey
18 Aug 2026 Consultation Open LA03/2026/0590/O

Approximately 20m SE of 183 Portglenone Road, Randalstown, accessed from Mucklerammer Road

Dwelling and garage on a farm

Outline Antrim And Newtownabbey
17 Aug 2026 Consultation Open LA03/2026/0591/F

Holywell Hospital, 60 Steeple Road, Antrim, BT41 2RJ

Removal and alterations of existing roof lanterns

Full Antrim And Newtownabbey
Recency
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits, whether taller, larger or in a protected area, needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases, especially those drawing a lot of comments, can take longer.
Can I get email alerts for new extensions applications in Antrim and Newtownabbey?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Antrim and Newtownabbey. You can also narrow the alert to a postcode, street, or drawn area.

We check Antrim and Newtownabbey's planning portal daily. New extensions applications appear here within a day of being published.